BATTERY PACK

• Main Author: NAEMURA TAKASHI
• Format: Patent
• Language: English
• Published: 17.06.2013
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide a battery pack with a constitution having high position accuracy of a circuit board and high dimension accuracy for mounting to an apparatus.SOLUTION: A battery pack comprises: a unit cell 10 whose sealing plate 10b is a positive electrode; and a circuit board 14 having a substrate body 141 opposed to the sealing plate 10b. On the circuit board 14, a substrate lead plate 142 extends from one end side of the substrate body 141. The substrate lead plate 142 is jointed to a rear surface 141b of the substrate body 141 at a first jointing portion 142a, and jointed to the sealing plate 10b via a clad plate 11 at a second jointing portion 142c. The first jointing portion 142a and the second jointing portion 142c on the substrate lead plate 142 are communicated with each other by an intermediate portion 142b. The intermediate portion is bent into a Z-shape in one side view in a Y-axis direction. Thereby, a spring property in a Z-axis direction is given to the substrate lead plate 142.